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Linux kernel source tree
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'-mabi=elfv2' is not added to clang's invocations when
CONFIG_PPC64_ELF_ABI_V2 is enabled, resulting in the generation of elfv1
code, as evidenced by the orphan section warnings/errors:
ld.lld: error: vmlinux.a(arch/powerpc/kernel/prom_init.o):(.opd) is being placed in '.opd'
ld.lld: error: vmlinux.a(init/main.o):(.opd) is being placed in '.opd'
ld.lld: error: vmlinux.a(init/version.o):(.opd) is being placed in '.opd'
To resolve this, add '-mabi=elfv2' to CFLAGS with clang. This uncovers
an issue in the 32-bit vDSO:
error: unknown target ABI 'elfv2'
The ELFv2 ABI cannot be used when building code for a 32-bit target. To
resolve this, just remove the '-mabi' flags from the assembler flags, as
it was only needed for preprocessing (the _CALL_ELF macro) but this was
cleaned up in commit
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.